External Monitor Flicker

Discussion in 'Microsoft Surface Pro 3' started by OPTiK, Oct 14, 2015.

  1. OPTiK

    OPTiK New Member

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    My Device:
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    I just got a Dell UltraSharp U3415W hooked up to my i5 SP3 w/dock. I noticed that if I setup the monitor with Display Port 1.2 settings, the monitor will flicker on and off and resolution will reset randomly when coming out of sleep. When I turn DP 1.2 off, everything is fine. I replaced the stock Dell cable with a StarTech (StarTech.com 6 ft Mini DisplayPort to DisplayPort 1.2 Adapter Cable M/M - DisplayPort 4k with HBR2 support - 6 feet Mini DP to DP Cable) and the issue is still happening with DP 1.2. Does anyone have any suggestions? Thanks!
     
  2. agt499

    agt499 Member

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    Try changing the Refresh Rate.
    My wife is in deep thought using out monitors at the moment so I'm totally not certain of the numbers, but I think by default our Dells were detected as 59Hz, but changing to 60Hz permanently eliminated the flicker. (And work fine with the stock Dell mDP→DP cable).
    Should help with the flicker, but the randomly resetting resolution my be more of a fact of life between docked/undocked : I find it most reliable to at least logout if not reboot when docking.

    Good luck!
     
  3. leeshor

    leeshor Well-Known Member

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    I thought about the refresh rate the first time I read the post, based on the title 't sound as much like a refresh flicker as it did an intermittent flashing.
     
  4. OPTiK

    OPTiK New Member

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    Thanks for the suggestions everyone! I've adjusted the refresh rate to 60hz, hopefully it will solve my issue :)
     
  5. leeshor

    leeshor Well-Known Member

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    In a typical office setting, if in the US, 60 Hz is not going to be a solution for some. With no fluorescent lights it may work.
     
  6. OPTiK

    OPTiK New Member

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    Looks like I'm still having the issue. I changed the SP3 refresh to 60hz too. I was watching a video and the monitor turned off/on. I think I'm going to have to revert the DisplayPort 1.2 setting.
     

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